Means for lubricating chain drives.



H. S. PIERCE.

MEANS FOR LUBRICATING CHAIN DRIVESg APPLICATION FILED SEPT. 5` 19M.

Patented Nov. 23, 1915.

HAROLD S. PIERCE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, T

COMPANY, OF CHICAGO, ILLINOIS, .A CGRPORATION 0F ILLINOIS.

lMeans non LUBRICATIG CHAIN DRIVES. i

Specicatioii of Letters Patent.

Patenten Nev. as, isis.

Applieatonled September 5, 1914. Serial N o. 860,415.

To all ofi/om t may concern.'

.Be it known that l, HAROLD S. PIERCE, a citizen ot' the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Means for Lubricating Chain Drives, of Which theollowingis a specification.

The object of my invention is to `provide iiieans 'for continuouslylubricating chain and. spiocketwheels oit' a chain driving mechanism. y

'lheiiivention is particularly adapted for lubricating chain reducinggearing which is diicult, under certain conditions, to lubricate. l Inthe accompanying drawing-Figure l, is a longitudinal sectional View onthe line 57.(5, Fig. 2; Fig. 2, is a' transverse sectional View on theline bvb, Fig. l, showing the detlector in fulllines; Fig. 3, is adetached perspective 'View of the trough and deflect-or; and Fig. 4.-,is an enlarged View of a detail of Fig. l.

Referring;- to the drawing, l is a fixed hearing through which projectsa sleeve 2 having grooves 3 for a lubricant. The sleeve projects beyondthe bearing and carries the main sprocket wheel 4, and extendingthrough. the sleeve is a. shaft 5 carrying, at

itsv outer end,` a sprocket Wheel 6 to which it is secured, in thepresent instance. 0n the bearing l is 'a sprocket wheel 7, and ecenti'ically mounted in an adjustable bearing 8 on the main Sprocketwheel et is a shaft 9 to which are secured the sprocket wheels l0 andll. Gn a shaft l2 is a sprocket Wheel '13 in line with the main sprocketwheel. A. chain le, illustrated byl dotted lines, Fig. 1,

passes around the inain sprocket Wheel l and the centralsprocket wheel13, While other chains around the sprocket Wheels 7 and l0 and 6 and l1,respectively- In the' sleeve 2 are. passages l5 and 16 for lubricant.17' is a casing inclosing the sprocket Wheels carried by 'the "bearingl., and the sprocket Wheel 13. l

receive oil, or other lubricant, as indicated, and in, one side of thecasing is a. door 18 and in the 'bottom is a drain cock l9. In theinterior of the casing at the upper end thereof and, in the presentinstance, directly above the shaft 5, is a transversely arranged troughy 20, suspended in any -suitable manner, so

as to leave a passage 21 at each side, and above this trough is adeector 22. j The rlhis casing is shaped'so as to' trough is arranged onan incline to allow oil to flow to one side of the casing, andcomiiiuiiicating with one side of the trough is a pipe 23 which extendsto a. channel 24 in the bearing 1. A sight feed glass 25 is preferablymounted in the pipe. A pipe 26 leads froml a channel 27 in the hub ofthe Wheel l directly in line with the passage 16 of the sleeve andcommunicates with a channel 28 in the housing for the bearing 8. Thisbearing has a ,lubricating channel for the purpose of conductinglubricant to the shaft 9. On the trough 10 is a screen29 to strain thelubricant as it is delieeted into the trough.

The bearing 1 extends through one side of the casing and is notched toreceive the edge of the'casing, as shown in Fig. 2, and the other sideof the casing is supported on the extended hub of thesprocket wheel 6;the casing having-a ring 30 secured to the outer Wall thereof. There isa bearing on'said hub in the. present instance.

Linn-BELT A certain amount of lubricant is placed in the casing, asindicated in the drawings,

and when the mechanism is started the oil will splash, due to the actionof the chain and the sprocket Wheels, throwing the eil to all parts ofthe mechanism including the interior of the sprocket Wheels and chain.The oil collected by the chainl and sprocket Awheels will be thrown oilata tangent and soine of this oil willwstrike the deilector 22 and willdrop into the trough 2Q. Owing to the trough being inclined, theoil.wi11 flow from thetrough through the tube 23 into the channels 3 ofthe sleeve 2 and Will lubiicate the shaft 5. It will thenlbe thrown, bycentrifugalforce, tlii'ouvh the pipe 26 to' the passage 28 and will luricate the shaft 9; the excess oil escaping at the ends of the bearingsin both instances, If it is desired.

to increase the amountlof oil. in the casing, it

f can be admitted through the air vents 31 at the side of the casing orthrough the door 18 and, when it is necessary to cleanse the casing,this door can he opened and access can be had to the interior thereof.

. It will be noticed that the ring 30 at one side of the casing has anannular groove 82 andthere is a passage 33 forming communication betweenthe groove and the interior of the casing so that any oil, or otherlubricant, passing out of the space between the hub of the gear Wheel 6and the ring will be collected and will pass again into the casing.

ice

` lI elaim:-'

l. The Combination of a caslng; chain 'gearing mounted within thecasingnsaid easing forming an oil reservoir extendingfto in the casing;

` 5 the lower portionvot the chain gearing; 'a

2. The combination offa casing; a shaft;

sprocket wheels on the shaft'located withsprocket Wheel thereong'alsomounted withf in the easing; chains passing aroundv the ser! eralsprocket Wheels; a transversely arranged trough `mounted above the mainSprocket Wheeland terminating short of the upper edge of the easing; adetlector 4on tfhe casing above the trough, said trough being arrangedon an inc-lineyand a pipeV extending from the lower end of the trough to-the bearing .of the' main Sprocket Wheel, so! that thel oil collectedthe trough 'from the Wheel Wlllbe carried to the vbearingY 1n thecasing;

a Second Shaft and a second -of two subscribing witnessee I Thecombination of a casing; a shaft; sprocket wheels on the shaft locatedwitha second shaft and a Secon'l sprocket wheel thereon, also mounted'within ,the casing; chainsy passingaround the several sprocket wheels;a transversely ar 'ranged trough mounted above the main sprocket wheeland terminating short ofthe upper edge of the casing; a delleetor on thecasing above the trough, said trough being arranged on an incline; fromthe lower end of thev trough to the bearing of the main sprocket Wheel,So that the oil collected in. the trough from the wheel will be carriedto the bearing;` a seeond shaft carried by themain wheel and having: aSprocket wheel thereon and a pipe leading from the hub of the main wheelto the bearing of the shaft carried thereby so that the oil will also becarried tol said latter bearing.

ln testimony whereof, l have signed my f name to this specification, inthe presence H'AnoLD Pinnen.

lVitnesses:

Jos. H. KLniN, VM. A. BARR.-

a pipe extendingy

